/*

 * jQuery Media Plugin for converting elements into rich media content.

 *

 * Examples and documentation at: http://malsup.com/jquery/media/

 * Copyright (c) 2007-2008 M. Alsup

 * Dual licensed under the MIT and GPL licenses:

 * http://www.opensource.org/licenses/mit-license.php

 * http://www.gnu.org/licenses/gpl.html

 *

 * @author: M. Alsup

 * @version: 0.92 (24-SEP-2009)

 * @requires jQuery v1.1.2 or later

 * $Id: jquery.media.js 2460 2007-07-23 02:53:15Z malsup $

 *

 * Supported Media Players:

 *	- Flash

 *	- Quicktime

 *	- Real Player

 *	- Silverlight

 *	- Windows Media Player

 *	- iframe

 *

 * Supported Media Formats:

 *	 Any types supported by the above players, such as:

 *	 Video: asf, avi, flv, mov, mpg, mpeg, mp4, qt, smil, swf, wmv, 3g2, 3gp

 *	 Audio: aif, aac, au, gsm, mid, midi, mov, mp3, m4a, snd, rm, wav, wma

 *	 Other: bmp, html, pdf, psd, qif, qtif, qti, tif, tiff, xaml

 *

 * Thanks to Mark Hicken and Brent Pedersen for helping me debug this on the Mac!

 * Thanks to Dan Rossi for numerous bug reports and code bits!

 * Thanks to Skye Giordano for several great suggestions!

 * Thanks to Richard Connamacher for excellent improvements to the non-IE behavior!

 */

;(function($) {



/**

 * Chainable method for converting elements into rich media.

 *

 * @param options

 * @param callback fn invoked for each matched element before conversion

 * @param callback fn invoked for each matched element after conversion

 */

$.fn.media = function(options, f1, f2) {

	if (options == 'undo') {

		return this.each(function() {

			var $this = $(this);

			var html = $this.data('media.origHTML');

			if (html)

				$this.replaceWith(html);

		});

	}

	

	return this.each(function() {

		if (typeof options == 'function') {

			f2 = f1;

			f1 = options;

			options = {};

		}

		var o = getSettings(this, options);

		// pre-conversion callback, passes original element and fully populated options

		if (typeof f1 == 'function') f1(this, o);



		var r = getTypesRegExp();

		var m = r.exec(o.src.toLowerCase()) || [''];



		o.type ? m[0] = o.type : m.shift();

		for (var i=0; i < m.length; i++) {

			fn = m[i].toLowerCase();

			if (isDigit(fn[0])) fn = 'fn' + fn; // fns can't begin with numbers

			if (!$.fn.media[fn])

				continue;  // unrecognized media type

			// normalize autoplay settings

			var player = $.fn.media[fn+'_player'];

			if (!o.params) o.params = {};

			if (player) {

				var num = player.autoplayAttr == 'autostart';

				o.params[player.autoplayAttr || 'autoplay'] = num ? (o.autoplay ? 1 : 0) : o.autoplay ? true : false;

			}

			var $div = $.fn.media[fn](this, o);



			$div.css('backgroundColor', o.bgColor).width(o.width);

			

			if (o.canUndo) {

				var $temp = $('<div></div>').append(this);

				$div.data('media.origHTML', $temp.html()); // store original markup

			}

			

			// post-conversion callback, passes original element, new div element and fully populated options

			if (typeof f2 == 'function') f2(this, $div[0], o, player.name);

			break;

		}

	});

};



/**

 * Non-chainable method for adding or changing file format / player mapping

 * @name mapFormat

 * @param String format File format extension (ie: mov, wav, mp3)

 * @param String player Player name to use for the format (one of: flash, quicktime, realplayer, winmedia, silverlight or iframe

 */

$.fn.media.mapFormat = function(format, player) {

	if (!format || !player || !$.fn.media.defaults.players[player]) return; // invalid

	format = format.toLowerCase();

	if (isDigit(format[0])) format = 'fn' + format;

	$.fn.media[format] = $.fn.media[player];

	$.fn.media[format+'_player'] = $.fn.media.defaults.players[player];

};



// global defautls; override as needed

$.fn.media.defaults = {

	standards:  false,      // use object tags only (no embeds for non-IE browsers)

	canUndo:    true,       // tells plugin to store the original markup so it can be reverted via: $(sel).mediaUndo()

	width:		400,

	height:		400,

	autoplay:	0,		   	// normalized cross-player setting

	bgColor:	'#ffffff', 	// background color

	params:		{ wmode: 'transparent'},	// added to object element as param elements; added to embed element as attrs

	attrs:		{},			// added to object and embed elements as attrs

	flvKeyName: 'file', 	// key used for object src param (thanks to Andrea Ercolino)

	flashvars:	{},			// added to flash content as flashvars param/attr

	flashVersion:	'7',	// required flash version

	expressInstaller: null,	// src for express installer



	// default flash video and mp3 player (@see: http://jeroenwijering.com/?item=Flash_Media_Player)

	flvPlayer:	 'mediaplayer.swf',

	mp3Player:	 'mediaplayer.swf',



	// @see http://msdn2.microsoft.com/en-us/library/bb412401.aspx

	silverlight: {

		inplaceInstallPrompt: 'true', // display in-place install prompt?

		isWindowless:		  'true', // windowless mode (false for wrapping markup)

		framerate:			  '24',	  // maximum framerate

		version:			  '0.9',  // Silverlight version

		onError:			  null,	  // onError callback

		onLoad:			      null,   // onLoad callback

		initParams:			  null,	  // object init params

		userContext:		  null	  // callback arg passed to the load callback

	}

};



// Media Players; think twice before overriding

$.fn.media.defaults.players = {

	flash: {

		name:		 'flash',

		title:		 'Flash',

		types:		 'flv,mp3,swf',

		mimetype:	 'application/x-shockwave-flash',

		pluginspage: 'http://www.adobe.com/go/getflashplayer',

		ieAttrs: {

			classid:  'clsid:d27cdb6e-ae6d-11cf-96b8-444553540000',

			type:	  'application/x-oleobject',

			codebase: 'http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=' + $.fn.media.defaults.flashVersion

		}

	},

	quicktime: {

		name:		 'quicktime',

		title:		 'QuickTime',

		mimetype:	 'video/quicktime',

		pluginspage: 'http://www.apple.com/quicktime/download/',

		types:		 'aif,aiff,aac,au,bmp,gsm,mov,mid,midi,mpg,mpeg,mp4,m4a,psd,qt,qtif,qif,qti,snd,tif,tiff,wav,3g2,3gp',

		ieAttrs: {

			classid:  'clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B',

			codebase: 'http://www.apple.com/qtactivex/qtplugin.cab'

		}

	},

	realplayer: {

		name:		  'real',

		title:		  'RealPlayer',

		types:		  'ra,ram,rm,rpm,rv,smi,smil',

		mimetype:	  'audio/x-pn-realaudio-plugin',

		pluginspage:  'http://www.real.com/player/',

		autoplayAttr: 'autostart',

		ieAttrs: {

			classid: 'clsid:CFCDAA03-8BE4-11cf-B84B-0020AFBBCCFA'

		}

	},

	winmedia: {

		name:		  'winmedia',

		title:		  'Windows Media',

		types:		  'asx,asf,avi,wma,wmv',

		mimetype:	  $.browser.mozilla && isFirefoxWMPPluginInstalled() ? 'application/x-ms-wmp' : 'application/x-mplayer2',

		pluginspage:  'http://www.microsoft.com/Windows/MediaPlayer/',

		autoplayAttr: 'autostart',

		oUrl:		  'url',

		ieAttrs: {

			classid:  'clsid:6BF52A52-394A-11d3-B153-00C04F79FAA6',

			type:	  'application/x-oleobject'

		}

	},

	// special cases

	iframe: {

		name:  'iframe',

		types: 'html,pdf'

	},

	silverlight: {

		name:  'silverlight',

		types: 'xaml'

	}

};



//

//	everything below here is private

//





// detection script for FF WMP plugin (http://www.therossman.org/experiments/wmp_play.html)

// (hat tip to Mark Ross for this script)

function isFirefoxWMPPluginInstalled() {

	var plugs = navigator.plugins;

	for (var i = 0; i < plugs.length; i++) {

		var plugin = plugs[i];

		if (plugin['filename'] == 'np-mswmp.dll')

			return true;

	}

	return false;

}



var counter = 1;



for (var player in $.fn.media.defaults.players) {

	var types = $.fn.media.defaults.players[player].types;

	$.each(types.split(','), function(i,o) {

		if (isDigit(o[0])) o = 'fn' + o;

		$.fn.media[o] = $.fn.media[player] = getGenerator(player);

		$.fn.media[o+'_player'] = $.fn.media.defaults.players[player];

	});

};



function getTypesRegExp() {

	var types = '';

	for (var player in $.fn.media.defaults.players) {

		if (types.length) types += ',';

		types += $.fn.media.defaults.players[player].types;

	};

	return new RegExp('\\.(' + types.replace(/,/ig,'|') + ')\\b');

};



function getGenerator(player) {

	return function(el, options) {

		return generate(el, options, player);

	};

};



function isDigit(c) {

	return '0123456789'.indexOf(c) > -1;

};



// flatten all possible options: global defaults, meta, option obj

function getSettings(el, options) {

	options = options || {};

	var $el = $(el);

	var cls = el.className || '';

	// support metadata plugin (v1.0 and v2.0)

	var meta = $.metadata ? $el.metadata() : $.meta ? $el.data() : {};

	meta = meta || {};

	var w = meta.width	 || parseInt(((cls.match(/w:(\d+)/)||[])[1]||0));

	var h = meta.height || parseInt(((cls.match(/h:(\d+)/)||[])[1]||0));



	if (w) meta.width	= w;

	if (h) meta.height = h;

	if (cls) meta.cls = cls;



	var a = $.fn.media.defaults;

	var b = options;

	var c = meta;



	var p = { params: { bgColor: options.bgColor || $.fn.media.defaults.bgColor } };

	var opts = $.extend({}, a, b, c);

	$.each(['attrs','params','flashvars','silverlight'], function(i,o) {

		opts[o] = $.extend({}, p[o] || {}, a[o] || {}, b[o] || {}, c[o] || {});

	});



	if (typeof opts.caption == 'undefined') opts.caption = $el.text();



	// make sure we have a source!

	opts.src = opts.src || $el.attr('href') || $el.attr('src') || 'unknown';

	return opts;

};



//

//	Flash Player

//



// generate flash using SWFObject library if possible

$.fn.media.swf = function(el, opts) {

	if (!window.SWFObject && !window.swfobject) {

		// roll our own

		if (opts.flashvars) {

			var a = [];

			for (var f in opts.flashvars)

				a.push(f + '=' + opts.flashvars[f]);

			if (!opts.params) opts.params = {};

			opts.params.flashvars = a.join('&');

		}

		return generate(el, opts, 'flash');

	}



	var id = el.id ? (' id="'+el.id+'"') : '';

	var cls = opts.cls ? (' class="' + opts.cls + '"') : '';

	var $div = $('<div' + id + cls + '>');



	// swfobject v2+

	if (window.swfobject) {

		$(el).after($div).appendTo($div);

		if (!el.id) el.id = 'movie_player_' + counter++;



		// replace el with swfobject content

		swfobject.embedSWF(opts.src, el.id, opts.width, opts.height, opts.flashVersion,

			opts.expressInstaller, opts.flashvars, opts.params, opts.attrs);

	}

	// swfobject < v2

	else {

		$(el).after($div).remove();

		var so = new SWFObject(opts.src, 'movie_player_' + counter++, opts.width, opts.height, opts.flashVersion, opts.bgColor);

		if (opts.expressInstaller) so.useExpressInstall(opts.expressInstaller);



		for (var p in opts.params)

			if (p != 'bgColor') so.addParam(p, opts.params[p]);

		for (var f in opts.flashvars)

			so.addVariable(f, opts.flashvars[f]);

		so.write($div[0]);

	}



	if (opts.caption) $('<div>').appendTo($div).html(opts.caption);

	return $div;

};



// map flv and mp3 files to the swf player by default

$.fn.media.flv = $.fn.media.mp3 = function(el, opts) {

	var src = opts.src;

	var player = /\.mp3\b/i.test(src) ? $.fn.media.defaults.mp3Player : $.fn.media.defaults.flvPlayer;

	var key = opts.flvKeyName;

	src = encodeURIComponent(src);

	opts.src = player;

	opts.src = opts.src + '?'+key+'=' + (src);

	var srcObj = {};

	srcObj[key] = src;

	opts.flashvars = $.extend({}, srcObj, opts.flashvars );

	return $.fn.media.swf(el, opts);

};



//

//	Silverlight

//

$.fn.media.xaml = function(el, opts) {

	if (!window.Sys || !window.Sys.Silverlight) {

		if ($.fn.media.xaml.warning) return;

		$.fn.media.xaml.warning = 1;

		alert('You must include the Silverlight.js script.');

		return;

	}



	var props = {

		width: opts.width,

		height: opts.height,

		background: opts.bgColor,

		inplaceInstallPrompt: opts.silverlight.inplaceInstallPrompt,

		isWindowless: opts.silverlight.isWindowless,

		framerate: opts.silverlight.framerate,

		version: opts.silverlight.version

	};

	var events = {

		onError: opts.silverlight.onError,

		onLoad: opts.silverlight.onLoad

	};



	var id1 = el.id ? (' id="'+el.id+'"') : '';

	var id2 = opts.id || 'AG' + counter++;

	// convert element to div

	var cls = opts.cls ? (' class="' + opts.cls + '"') : '';

	var $div = $('<div' + id1 + cls + '>');

	$(el).after($div).remove();



	Sys.Silverlight.createObjectEx({

		source: opts.src,

		initParams: opts.silverlight.initParams,

		userContext: opts.silverlight.userContext,

		id: id2,

		parentElement: $div[0],

		properties: props,

		events: events

	});



	if (opts.caption) $('<div>').appendTo($div).html(opts.caption);

	return $div;

};



//

// generate object/embed markup

//

function generate(el, opts, player) {

	var $el = $(el);

	var o = $.fn.media.defaults.players[player];



	if (player == 'iframe') {

		var o = $('<iframe' + ' width="' + opts.width + '" height="' + opts.height + '" >');

		o.attr('src', opts.src);

		o.css('backgroundColor', o.bgColor);

	}

	else if ($.browser.msie) {

		var a = ['<object width="' + opts.width + '" height="' + opts.height + '" '];

		for (var key in opts.attrs)

			a.push(key + '="'+opts.attrs[key]+'" ');

		for (var key in o.ieAttrs || {}) {

			var v = o.ieAttrs[key];

			if (key == 'codebase' && window.location.protocol == 'https:')

				v = v.replace('http','https');

			a.push(key + '="'+v+'" ');

		}

		a.push('></ob'+'ject'+'>');

		var p = ['<param name="' + (o.oUrl || 'src') +'" value="' + opts.src + '">'];

		for (var key in opts.params)

			p.push('<param name="'+ key +'" value="' + opts.params[key] + '">');

		var o = document.createElement(a.join(''));

		for (var i=0; i < p.length; i++)

			o.appendChild(document.createElement(p[i]));

	}

	else if (o.standards) {

		// Rewritten to be standards compliant by Richard Connamacher

		var a = ['<object type="' + o.mimetype +'" width="' + opts.width + '" height="' + opts.height +'"'];

		if (opts.src) a.push(' data="' + opts.src + '" ');

		a.push('>');

		a.push('<param name="' + (o.oUrl || 'src') +'" value="' + opts.src + '">');

		for (var key in opts.params) {

			if (key == 'wmode' && player != 'flash') // FF3/Quicktime borks on wmode

				continue;

			a.push('<param name="'+ key +'" value="' + opts.params[key] + '">');

		}

		// Alternate HTML

		a.push('<div><p><strong>'+o.title+' Required</strong></p><p>'+o.title+' is required to view this media. <a href="'+o.pluginspage+'">Download Here</a>.</p></div>');

		a.push('</ob'+'ject'+'>');

	}

	 else {

	        var a = ['<embed width="' + opts.width + '" height="' + opts.height + '" style="display:block"'];

	        if (opts.src) a.push(' src="' + opts.src + '" ');

	        for (var key in opts.attrs)

	            a.push(key + '="'+opts.attrs[key]+'" ');

	        for (var key in o.eAttrs || {})

	            a.push(key + '="'+o.eAttrs[key]+'" ');

	        for (var key in opts.params) {

	            if (key == 'wmode' && player != 'flash') // FF3/Quicktime borks on wmode

	            	continue;

	            a.push(key + '="'+opts.params[key]+'" ');

	        }

	        a.push('></em'+'bed'+'>');

	    }	

	// convert element to div

	var id = el.id ? (' id="'+el.id+'"') : '';

	var cls = opts.cls ? (' class="' + opts.cls + '"') : '';

	var $div = $('<div' + id + cls + '>');

	$el.after($div).remove();

	($.browser.msie || player == 'iframe') ? $div.append(o) : $div.html(a.join(''));

	if (opts.caption) $('<div>').appendTo($div).html(opts.caption);

	return $div;

};





})(jQuery);